2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1477994994 NP
Verify on CMS →

CASSI SHELLY, NP

Psychiatric/Mental Health Nurse Practitioner in BOISE, Idaho. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
929
Medicare Part D claims · 27 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$266.94
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CASSI SHELLY, NP filed 929 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in BOISE, Idaho, prescribing 89% generic.

929
Part D claims, 2023
89%
generic prescribing
$266.94
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

CASSI SHELLY, NP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

929 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about CASSI SHELLY, NP?

Quality data not reported

NPI registry status

Active

Issued 07/12/2013

NPI 1477994994

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

929 0% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Idaho

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Idaho providers

Idaho providers

Psychiatric/Mental Health Nurse Practitioner share within Idaho

1. Psychiatric/Mental Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Nurse Practitioner share within Idaho

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatric/Mental Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

CASSI SHELLY, NP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding NP credentials at 2594 S SWALLOWTAIL LN, BOISE, ID, 83706, with a listed phone of (208) 720-9670. NPI 1477994994 was issued on 07/12/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHELLY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 929 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $228K in drug spend, split 11% brand-name and 89% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 39,953 enrolled providers across 54 states and an average of 927 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2594 S SWALLOWTAIL LN
BOISE, ID 83706

Provider Details

NPI 1477994994
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 07/12/2013

Hospital and facility affiliations

Facilities where CASSI SHELLY, NP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

TRIVIUM LIFE SERVICES MOUNTAIN WEST, LLC
BOISE, ID

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for CASSI SHELLY, NP. Source: openpaymentsdata.cms.gov.

Total received

$267

Largest payer

Janssen Pharmaceuticals, Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

CASSI SHELLY, NP — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 929 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

929
Total Claims
$228K
Total Drug Cost
27
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
945
Total Day Supply
23,081
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$194K
Generic Drug Cost
$34K

Patient Demographics

Average Patient Age
44.4 years
Avg HCC Risk Score
1.27
Gender Split
48% female / 52% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What CASSI SHELLY, NP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
136
Quetiapine Fumarate
60
Prazosin Hcl
55
Bupropion Xl
Bupropion Hcl
52
Buspirone Hcl
48
Duloxetine Hcl
42
Hydroxyzine Hcl
38
Lamotrigine
35
Gabapentin
32
Vraylar
Cariprazine Hcl
28

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatric/Mental Health Nurse Practitioner Overview

How CASSI SHELLY, NP fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.

39,953
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider

CASSI SHELLY, NP's 929 claims are above the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Idaho

Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as SHELLY.

Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CASSI SHELLY, NP's specialty?
CASSI SHELLY, NP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in BOISE, Idaho. Credentials: NP.
How much does CASSI SHELLY, NP prescribe under Medicare Part D?
In 2023, CASSI SHELLY, NP wrote 929 Medicare Part D claims totaling $228K in drug costs for 27 beneficiaries.
Where is CASSI SHELLY, NP located?
CASSI SHELLY, NP is located at 2594 S SWALLOWTAIL LN, BOISE, ID, 83706. Phone: (208) 720-9670.
What is CASSI SHELLY, NP's NPI number?
CASSI SHELLY, NP's National Provider Identifier (NPI) is 1477994994, issued on 07/12/2013.
Does CASSI SHELLY, NP prescribe more brand-name or generic drugs?
CASSI SHELLY, NP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $194K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US?
There are 39,953 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does CASSI SHELLY, NP prescribe most often?
Based on 2023 Medicare Part D data, CASSI SHELLY, NP's most frequently prescribed drugs include Buprenorphine-Naloxone, Quetiapine Fumarate, Prazosin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CASSI SHELLY, NP accept Medicare?
CASSI SHELLY, NP appears in CMS Medicare data with 929 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CASSI SHELLY, NP's credentials?
CASSI SHELLY, NP's NPI is 1477994994 with credentials NP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology